Exchange hybrid add-in on premise problem

David 0 Reputation points

I have a hybrid 365 environment with exchange 2016. I am trying to install a barracuda essentials add-in. I go to my on premise environment and go to add-ins and to the store. I log in and try to download but it keeps defaulting to my 365 exchange add-ins. I have tried an unlicensed account for 365as a test and no luck. I have hybrid modern auth set up. When I try to use an account that isn't seen azure ad it can't find account. I have installed the add-in in my 3y5 environment already just can't get it to install in my on-prem servers

Exchange Server
Exchange Server
A family of Microsoft client/server messaging and collaboration software.
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Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Shaofan Lv-MSFT 385 Reputation points Microsoft Vendor

    Hi @David,

    You could try to install the add-in with an personal Microsoft account like an account. If you do not have one, you could apply an account for free via

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    Best regards

    Shaofan Lv

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